Answer: 8x-12
Step-by-step explanation:
Remove these () from the first pair
9x-8-(x+4)
Subtract 9x from x - X is always one unless they give you a certain number for x to be. Also remove the remainder parenthesis from the second pair of numbers.
9x-x = 8x
Add 8 to 4
8+4 = 12
Answer is 8x-12
I hope that I explained it more to the point where you understand it
